Typewriting machine



latented Apr. 20, 1926.

UNITED STATES PATENT OFFICE,

CHARLES M. LAWRENCE, OF BROOKLYN, NEW YORK, ASSIG-NOR TO UNDERWOOD'TYPE- WRITER COMPANY, OF NEW YORK,-N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MACHINE.

Application filed June 24, 1925. Serial No. 39,170.

To all whom it may concern:

Be it known that I, CHARLES M. LAW- RENCE, a citizen of the UnitedStates, reside ing in Brooklyn Borough, in the county of Kings, city andState of New York, have invented certain new anduseful Improvements inTypewriting Machines, of which the following is a specification.

The present invention relates to glarepreventing shades for windowsarranged in sound-deadening cabinets for observing typing on the platensof typewriting machines enclosed in said cabinets, and it may beespecially serviceable where glare in the cabinet windows is caused bylight coming from the right or left of the windows.

According to the present invention, provision is made of a shadeincluding an opaque body-plate slidably mounted on a grooved trackfastened on the usual cover of a sound-deadening cabinet for atypewriting machine in the rear of the usual window for observing typingon the platen of the machine. An opaque wing may be hinged to each endof the body-plate and be arranged with a flexible, downwardly-extendingwire havinga rubber shoe-element for engagement with the glass window,whereby the wings may be held in several different operative positionsto intercept glare causing light rays from the right or left of thewindow.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a partial end view of a sound deadening cabinet for atypewriting ma chine, and having the adjustable shade of the presentinvention attached thereto.

Figure 2 is a partial front view, on a reduced scale, of the same.

Figure 3 is a plan view, on a reduced scale, of the same.

Figure 4 is a diagrammatic plan view of the adjustable shade of thepresent invention in place on a'sound-deadening cabinet, illustrating acertain way a shade can be used.

A sound-deadening cabinet 9, for a typewriting machine 10, is shown asincluding a body-part 11 having a cover 12 fastened thereto by hinges12*. The cabinet 9 may have an outer casing and the usualinterior lining(not shown) of a sound-absorbing material. The cover 12 may have theusual window-opening 123 closed by a transparent glass plate 1 1,through which the operative may observe the typing on the platen of themachine 10. To prevent objectionable glares in the window-glass 14 orreflections there from to the eyes of the operative, a shade 15, havinga substantiallymectangular opaque body-portion 16 and opaque wings 17and 18 hinged at the left and right ends thereof, is provided. Thebody-portion 16 may be adjustablv mounted on two legs 19 having sprmgyfooteportions 20 arranged to slidably engage with a grooved metaltrack21 fastened on the cover 12 by screws 22 at the rear of thewindow-0peniiig13. 1

The track 21 may have a plane base 23 and two inwardly-inclinedflange-members 24 which may form, with the base, a substantiallydovetail recess. The springy footportions 20 will preferably be bent tofit snugly in the dovetail recess element of the track 21, withsuflicient pressure against the inclined flanges 2 1 to hold the'shade15 se-' curely in operative position substantially perpendicular-to theplane of the cover 12. The shade may be readilymoved to the right orleft on the track 21 by the operative, but the pressure of thefoot-portions 20 in the dovetailrecess will prevent accidental movementof the shade sidewise.

The wings 17 and 18 may be connected to the body-portion 16 bypiano-type hinges 25 about pins 26, so as to provide close connectionswithout cracks or openings, through which light rays may pass. The wingsmay be especially advantageous when arranged as illustrated in Figures 2and 3, whereby one wing may intercept glare-causing light rays comingfrom the right and theother wing may intercept light rays coming fromthe left.

Each of the hinged wings 17 and 18 maybe securely held at any desiredangle with the body-portion 16 by means of a flexible wire catch-piece27, having its upper end fastened to its wing by a screw 28, and itslower end provided with a short, tubular rubber shoe or sleeve 29 forengagementon the glass plate 14. The shoes 29 may be arranged to engageonthe glass plate 14 with a pressure sufiicient to hold the wingsagainst accidental movement, but will permit the operative to swing thewings readily to any desired position. The catch-pieces 27 also serve asbraces to help hold up the weight of the wings l7 and 18, therebylessening considerably the overturning strain from the shade which wouldhave to be wholly resisted by the foot-members 2O engaging in thedovetail recess of the track 21, were the foot-pieces omitted. WVhen theglare-producing light comes squarely from the rear of the cabinet, bothwings 17 and 18 may be swung entirely, or nearly, in line with thecentral body-part 16, as indlcated in Figure 4.

The catch-pieces 27 will preferably be made flexible enough to permittheir lower rubber-covered ends to be readily sprung high enough toclear the top of the cover 12, so that both foot-portions of the shade15 may be slid off the track 21, at one end thereof, and the shade 15removed when not needed.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. The combination with a sound-deadening cabinet for a typewritingmachine, said cabinet having a body-part and a cover hinged theretoprovided with a glass window for observing typing on the platen of saidmachine, of a grooved track mounted on said cover in the rear of saidwindow, a

light-intercepting shade slidably mounted on said track and having abody-portion, wing-portions hinged to each end thereof,andspring-pressed' means for holdmg said wing-portions in differentoperative positions. 7

2. The combination with asound-deadening cabinet-for a typewritingmachine, said cabinet having a 'body-par't and a cover hingedtheretoprovided with a glass window for observing typing on the platenof said machine, of a grooved track mounted on said cover in the rear ofsaid window, and a light-intercepting shade, having a body-portion,slidably mounted on said track,'a wing-portion hinged to each end ofsaid body-portion, and individual means for holding each wing-portion indifferent operative positions, saidmeans including a downwardly-extending flexible wire catch-piece having its upper end fastenedto one of said wings and its lower end provided with a rubbershoe-element for frictional engagement on said glass window.

3. A glare-preventing means for a sounddeadening cabinet for atypewriting H151: chine, said cabinet having a glass window forobserving the typing on the platen of the machine,said means including ashade substantially perpendicular to the plane of said window mounted inthe rear thereof and arranged for being slid in operative po-. sitionalong said window to the-right or left.

4. A means for preventing glare in the glass window arranged in asound-deadening cabinet for a ,typewriting machine for observing typingon the platen of said machine, sald means including a grooved trackmounted on the top of the cabinet in the rear of said window, and ashade substantially perpendicular to the plane of said window mounted ontwo foot-elements arranged to slidably engage with said grooved track,whereby said shade may be held in different operative positions withrespect to said window. I

5. The combination with a sound-deadening cabinet for a .typewritingmachine, said cabinet having a lower body-part and a cover hingedthereto provided with a glass window for observing the typing on theplaten of said machine, of a grooved track fastened on saidvcoveradjacent the rear side of said window, and an opaque shade arranged forpreventing glare-causing light rays from striking said window andslidably mounted on said track.

6. The combination with a sound-deadening cabinet for a typewritingmachine, said cabinet having a lower body-part and a cover hingedthereto provided with a glass window for observing the typing on theplaten of said machine, of an opaque shade arranged for preventingglare-causing light rays from striking said window and mounted on meansmovable to the right or left on said cover in the rear of said window.

7. The combination with a sound-deadening cabinet for a typewritingmachine, said cabinet having a lower body-part and a cover hingedthereto provided with a glass window for observing the typing on theplaten of said machine, of an opaque shade having a substantiallyrectangular bodyportion and a wing-portion hinged to each end thereofarranged for preventing glareproducing light rays from striking saidwindow and adjustably mounted on said cover in the rear of said windowfor movement to the right or left.

8. The combination with a sound-deadening cabinet for a ty-pewritingmachine, said cabinet having a lower body-part and a cover hingedthereto provided with a glass window for observing the typing on theplaten of said machine, of an opaque shade having a substantiallyrectangular body-portionand a wing-portion hinged to each end thereofarranged for preventing glare-producing light rays from striking saidwindow and movably mounted on saidcover in the rear of said window, saidwing-portions having downwardly-extending flexible catch=pieces arrangedfor engagement with said glass window to hold the wing-portions indifferent desired operative positions with respectto said body-part.

9. A glare-preventing shade for a window in the cover of asound-deadening cabinet for a typewriting machine, said cabinetineluding a grooved track mounted on said cover in the rear of saidwindow, an opaque plate shorter than said Window and substantiallyperpendicular to the same mounted on said track, an opaque wing at eachend of said plate having a light-proof hinged connection thereto, and aWire catch-piece fastened to each wing and extending downwardlytherefrom having a rubber covered lower extremity for engagement withsaid glass window, each of said catch pieces being arranged to carrypart of the weight of the hinged wing to which it is fastened.

10. Means for preventing glare in a glass window of an inclined top of asound-dead ening cabinet for a typewriting machine, said means includinga track arranged with a dovetail recess-element and mounted in the rearof said window, an opaque shade substantially perpendicular to said top,said shade having flexible foot members arranged for slidable engagementin the recess-element of said track to help hold said shade up inoperative position, and wire means fastened to said shade arranged toengage with said window for holding said shade against accidentallateral movement on said track and to assist in holding said shade inits operative position.

11. A detachable glare-preventing means for a glass Window in asound-deadening cabinet for a typewriting machine, said means includinga grooved track mounted on said cabinet in the rear of said Window, andan opaque shade substantially perpendicular to the plane of said windowand provided with two foot-members arranged to slidably engage with saidtrack to hold said shade in operative position, said track arranged topermit said shade-supporting foot-membe-rs to he slid out of engagementtherewith at either end thereof.

12. A detachable glare-preventing means for a glass window in asound-deading cabinet for a typewriting machine, said means including agrooved track mounted on said cabinet in the rear of said window, anopaque body-part substantially perpendicular to the plane of saidWindow, an opaque wing hinged to each end of said body-part, and twofoot-members arranged for supporting said body-part and slidablyengaging I with said track, said track arranged to per mit saidbody-part-supporting members to be slid out of engagement therewith ateither end thereof.

CHARLES M. LAWRENCE.

